Spike-pulling device



April 8, 1924. 1,489,355

J. W. KNOWLTON SPIKE PULLING DEVICE Filed May 27. 1922 Patented Apr. 8,1924.

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Application filed May 27,

To all whom it may concern Be it known that I, JERRY W. KNowLToN, asubject of Canada, residing at Vancouver, in the Province of BritishColumbia and Dominion of Canada, have invented certain new and usefulImprovements in Spike- Pulling Devices, of which the following is isspecification.

This invention relates to spike pulling devices and has for its objectthe provision of means whereby spikes may be withdrawn without bendingthe same.

A further object is to provide a spike pulling device which by reason ofthe arrangement of the levers may be operated by one man and withoutexcessive eflort.

A further object of the invention is to provide a spike pulling devicewherein the upward pull exerted on the spike is utilized to more firmlygrip the jaws of the pulling device with the head of the spike.

A further object is to provide a spike pulling device which is of highlysimplified construction, durable in use and cheap to manufacture.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawing forming 80 a part of this application and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a side elevation of the improved spike pulling device inuse.

Figure 2 is a detailed front elevation illustrating the spike engagingmeans.

Figure 3 is a fragmentary perspective of a handle embodied in theinvention.

In the drawing wherein for the purpose of illustration is shown apreferred embodiment of the invention the numeral 5 designates a basefrom which a pair of spaced parallel standards 6 extend and as illustrated in Figures 1 and 2 the standards are braced by a pair ofoppositely arranged reinforcing ribs 7.

A lever 10 is pivoted intermediate its ends between the standards 6 bymeans of a pivot element 11 and the rear portion of the lever hasconnection with a pair of links 14 by means of a pivot element 15.

In carrying out the invention the lower portions of the links 14 areivoted as indicated at 18 to the lower portion ofthehandle 20 whichforms a means whereby the spikes 1922.. Serial ,No. seaore.

may be elevated. The forward portion of the handle 20 is formed with adownwardly projecting ear 22 having an aperture 24 for the reception ofa pivot element 25 which extends through the spaced parallel stand- 50ards 6. More specifically the standards 6 are provided with rearwardlydirected extensions through which the pivot element 25 is extended. Thedownwardly projecting car 22 is arranged somewhat below the handle 20 sothat the pivot element 25 is connected to the handle in such a mannerthat a maximum leverage is obtained.

In carrying out the invention a pair of head members 28 are pivotallyconnected to the forward portion of the lever 10: by means of a pivotelement 30 and the lower portions of the head members 28 are providedwith apertured ears 32 between which links 34 are connected by means ofpivot elements 35. The lower portions of the links are connected to theapertured ears 37 formed at the rear ends of the jaws 39.

As illustrated in Figure 2 the jaws 39 are crossed and are pivotallyconnected at 40. A coiled spring 42 is confined between the ears 37 andis connected to lugs 43 carried by the opposed sides of the ears. Alsoleaf springs 48 are connected to the cars 37 as indicated at 4:9 andserve to urge the 2 jaws firmly into engagement with the head of thespike 50 being removed.

In operation the jaws 39 are engaged with the head of the spike and thehandle 20 which is curved longitudinally is engaged and moved downwardlyso as to elevate the spike engaging member. As the lever 10 is rockedthe jaws 39 are more firmly engaged with the head of the spike so thatthe accidental disconnection of the spike engaging means from the spikeis prevented. It will be seen that the spike 5O iswithdrawn without thebending of the same so that the spike may be used a number of times.

Having thus described the invention, what is claimed is 1. A spikeremoving device consisting of a standard, a lever pivoted intermediateits ends to the standard, a pair of head members pivoted to the forwardportion of said lever and provided with pairs of downwardly directedapertured ears, links connected to said ears, a pair of pivotallyconnected jaws having their rear portions formed with ears pivoted tosaid links, a

ears, and leaf springs connected tosaid second named ears and engaglngsaid ]2LWS.

2. A spike removing device consisting of a standard,- a' lever pivotedintermediate its ends to the standard, a pair of head members pivoted tothe forward portionof-sai'd lever and provided with pairs of downwardlydirected apertured earsy-links-eonnected to said ears, a pair ofpivotally connected jaws having their "rear portions tudinally.

" spring arranged between said second named ears, leaf springs connectedto said second named ears and engaging said jaws, and a handle havingconnectionwith said standard and said lever and being curved longi-JERRY W. KNOWLTON.

Witnesses: 4 I

JAMEs F. VENABLE, J 01m SMITH.

